Malicious PDF — malware analysis report

Static analysis result for SHA-256 68b54175cc6236ac…

MALICIOUS

PDF

32.3 KB Created: 2021-07-06 06:46:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0062e309803706b437a923c805e29dbc SHA-1: 5db41936247ce8488d1d83312ee1b30fcd6d044f SHA-256: 68b54175cc6236ace9eae5418e6c344afa3352a198f4d071ca341ccdc3044b37
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/robux-free-robux-game-hack PDF link annotation
    • https://library.um-sorong.ac.id/repository/roblox-prison-break-cheats_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/how-to-redeem-a-free-code-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/roblox-cheat-engine-robux-download_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-robux-codes-no-download_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/how-to-get-hacked-account-back-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/how-to-get-daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/cheat-roblox-jailbreak-fr_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/roblox-working-robux-hack_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/comment-hacker-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/games-like-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/app-robux-free_GM431946152.pdfIn PDF document text
    • https://library.um-sorong.ac.id/repository/free-robux-promo-codes-2021-april_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000029e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29E6 21952 bytes
SHA-256: a2b5cab48adb5d87b31bae241564acef5b7df9d0ed87b3f5e6582b103109dfa5
font_01_sfnt_off00005a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A96 18716 bytes
SHA-256: 776cb4e5338264d595c967a8fec9379201c9a4b17293b3c44edd5cf6cd499e31

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